Vagrant in win7 - error "couldn't open file /c:/Windows/system32/base

I am about to give up on this course. After a couple of hours trying to get this running with help from the discussions I am now stuck. Same error in Powershell 3.0 and command prompt, but opened as administrator.

PS C:\Windows\system32> vagrant up --provision
Bringing machine ‘default’ up with ‘virtualbox’ provider…
==> default: Box ‘base’ could not be found. Attempting to find and install…
default: Box Provider: virtualbox
default: Box Version: >= 0
==> default: Box file was not detected as metadata. Adding it directly…
==> default: Adding box ‘base’ (v0) for provider: virtualbox
default: Downloading: base
default:
An error occurred while downloading the remote file. The error
message, if any, is reproduced below. Please fix this error and try
again.

Couldn’t open file /C:/Windows/system32/base

Hi CarlBade,

Sorry for your suffering. You need to run vagrant up --provision from the directory which you might have downloaded/extracted from the handouts.

Please follow the steps mentioned here and let me know if you need help in any of the steps:

https://discourse.university.mongodb.com/t/installing-setting-up-vagrant-and-run-validation-scripts/1314/4

Kanika